| Mariewska, Zofia | Zofia Mariewska | Actor | 1905 | 1 | |
| Mariański, Marian | Marian Mariański | Actor | 1905 - 1912 | 2 | |
| Myin, - | - Myin | Actor | 1905 | 1 | |
| Meunier, Maurice | Maurice Meunier | Actor | 1905 - 1914 | 2 | |
| MacClellan, Ellis | Ellis MacClellan | Actor | 1905 | 1 | |
| Meech, Owen | Owen Meech | Actor | 1905 - 1910 | 4 | |
| Minto, Dorothy | Dorothy Minto | Actor | 1905 | 1 | 1 |
| MacGregor, Mr. | Mr. MacGregor | Actor | 1905 | 1 | |
| Murby, Millicent | Millicent Murby | Actor | 1904 - 1905 | 2 | |
| Mitchelmore, Daisy | Daisy Mitchelmore | Actor | 1905 | 1 | |
| Massin, - | - Massin | Actor | 1906 | 2 | |
| Mirskaya, Mme. | Mme. Mirskaya | Actor | 1906 | 2 | 1 |
| Moret, Henriette | Henriette Moret | Actor | 1906 - 1911 | 10 | |
| Møller, Julie | Julie Møller | Actor | 1906 | 1 | 1 |
| Marot, - | - Marot | Actor | 1906 | 1 | |
| Marjeroni, George | George Marjeroni | Actor | 1906 | 2 | |
| Michnowska, Stefania | Stefania Michnowska | Actor | 1906 - 1924 | 13 | |
| Moustakas, Konstantinos | Konstantinos Moustakas | Actor | 1906 - 1909 | 4 | |
| Mason, William C. | William C. Mason | Actor | 1906 - 1926 | 5 | |
| Moser, Emil | Emil Moser | Actor | 1906 - 1916 | 6 | |
| Magnus, Cecil | Cecil Magnus | Actor | 1906 - 1907 | 6 | |
| MacDermott, Marc | Marc MacDermott | Actor | 1906 - 1907 | 12 | |
| Mendelssohn, Gordon | Gordon Mendelssohn | Actor | 1906 - 1907 | 6 | |
| MacDonald, George | George MacDonald | Actor | 1906 - 1907 | 4 | |
| Munt, E. M. | E. M. Munt | Actor | 1906 | 1 | |
| Młodowska, (?) | (?) Młodowska | Actor | 1906 | 1 | |
| Mastalski, Zenon | Zenon Mastalski | Actor | 1907 - 1912 | 4 | |
| McGuire, John | John McGuire | Actor | 1907 | 1 | |
| MacLarnie, Thomas | Thomas MacLarnie | Actor | 1907 | 1 | |
| Mowinckel-Nilsen, Aug. | August Mowinckel-Nilsen (Aug. Mowinckel-Nilsen) | Actor | 1907 - 1928 | 5 | |
| Measor, Adela | Adela Measor | Actor | 1907 | 1 | 1 |
| Majeroni, Georgio | Georgio Majeroni | Actor | 1907 | 1 | 1 |
| McVicker, Sarah | Sarah McVicker | Actor | 1907 | 1 | 1 |
| Mendel, Georg | Georg Mendel | Actor | 1907 | 1 | |
| Malmberg, Erik | Erik Malmberg | Actor | 1907 - 1921 | 6 | |
| Mellish, Fuller | Fuller Mellish | Actor | 1907 - 1910 | 8 | 1 |
| Montgomery, Florence | Florence Montgomery | Actor | 1907 - 1908 | 4 | 1 |
| Miller, Henriette | Henriette Miller | Actor | 1908 | 1 | |
| Muzikants, K. | K. Muzikants | Actor | 1908 | 1 | |
| McNeill, Mildred | Mildred McNeill | Actor | 1908 | 1 | 1 |
| Morgan, Ralph | Ralph Morgan | Actor | 1908 | 1 | |
| Molin, Edw. | Edw. Molin | Actor | 1908 | 1 | |
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